(19)

(11)

EP 4 240 923 A1

(12)

(43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 20960946.0 (22) Date of filing: 03.11.2020

(51) International Patent Classification (IPC):  E04B 2/74(2006.01) E04C 3/09(2006.01) E04C 3/07(2006.01) E04C 3/29(2006.01) (52) Cooperative Patent Classification (CPC): E04C 3/29; E04B 1/3483; E04B 5/14; E04B 1/24; E04B 2001/2466; E04B 2/7412 (86) International application number: PCT/TR2020/051029 (87) International publication number: WO 2022/098316 (12.05.2022 Gazette 2022/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Savkay, Berkay Hakki Beykoz/Istanbul (TR)	(72) Inventor: Savkay, Berkay Hakki Beykoz/Istanbul (TR) (74) Representative: Cayli, Hülya  Paragon Consultancy Incorporated Koza Sokak No: 63/2 GOP 06540 Ankara GOP 06540 Ankara (TR)